PD-L1 has had ups and downs as a biomarker, says Gandara. It seemed promising early on, but after data with nivolumab (Opdivo) came out in non-small cell lung cancer, it was no longer seen as a specific indicator.

Gandara adds that the field is still grasping for the best biomarkers to use in this disease.

PD-L1 has had ups and downs as a biomarker, says Gandara. It seemed promising early on, but after data with nivolumab (Opdivo) came out in non-small cell lung cancer, it was no longer seen as a specific indicator.

Gandara adds that the field is still grasping for the best biomarkers to use in this disease.